PROCESS FOR THE SYNTHESIS OF (S) 3-AMINO-4-(DIFLUOROMETHYLENYL)CYCLOPENT-1-ENE-1-CARBOXYLIC ACID

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(11)

EP 4 410 773 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	01.01.2025 Bulletin 2025/01

(43)	Date of publication A2:
	07.08.2024 Bulletin 2024/32

(21)	Application number: 24175100.7

(22)	Date of filing: 28.05.2019

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International Patent Classification (IPC):

(52)	Cooperative Patent Classification (CPC):
	C07C 269/06; C07C 227/20; C07B 2200/07; C07C 2601/10; C07D 471/08; Y02P 20/55; C07C 271/24

	C-Sets:
	C07C 269/06, C07C 271/24; C07C 227/20, C07C 229/48;

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

25.05.2018 US 201862676373 P
05.03.2019 US 201962814026 P
18.04.2019 US 201962835776 P

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	19807682.0 / 3784649

(71)	Applicant: Northwestern University
	Evanston, IL 60208 (US)

(72)	Inventors:
	SILVERMAN, Richard, B. Winnetka, Illinois, 60093 (US) MOSCHITTO, Matthew Gloucester, Massachusetts, 01930 (US)

(74)	Representative: Frick, Robert
	Lorenz Seidler Gossel Rechtsanwälte Patentanwälte Partnerschaft mbB Widenmayerstraße 23 80538 München 80538 München (DE)

(54)	PROCESS FOR THE SYNTHESIS OF (S) 3-AMINO-4-(DIFLUOROMETHYLENYL)CYCLOPENT-1-ENE-1-CARBOXYLIC ACID

(57) The invention relates to a process for preparing (S)-3-amino-4-(difluoromethylenyl)cyclopent-1-ene-1-carboxylic acid (1) or salt thereof.